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Lenovo IdeaPad U455 Lenovo IdeaPad U455 User Guide V1.0 - Page 136

Trademarks, marks of others.

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Trademarks Lenovo, Lenovo logo, IdeaPad, VeriFace and OneKey are either registered trademarks or trademarks of Lenovo in the United States and/or other countries. Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, product or service names may be trademarks or service marks of others. All other trademarks and registered trademarks are trademarks or registered trademarks of their respective holders. In this manual, ™ and ® marks are not specified. 122

Section	Page
Important safety information	9
Important safety information	9
Chapter 1. Getting to know your computer	15
Top view	15
Left-side view	18
Right-side view	19
Bottom view	20
Chapter 2. Learning the basics	22
First use	22
Using AC adapter and battery	25
Using the touchpad	28
Using the keyboard	31
Connecting external devices	34
Switching GPU (Select models only)	37
Special keys and buttons	39
System status indicators	41
Securing your computer	42
Chapter 3. Using the Internet	45
Wired connection	45
Wireless connection	47
Chapter 4. OneKey Rescue system	53
OneKey Rescue system	53
Chapter 5. Troubleshooting	56
Frequently Asked Questions	56
Troubleshooting	59
Chapter 6. Upgrading and replacing devices	67
Replacing the battery	67
Replacing the hard disk drive	69
Replacing memory	73
Appendix A. Getting help and service	78
Getting help on the Web	79
Calling the customer support center	79
Getting help around the world	82
Lenovo warranty service telephone numbers	82
Appendix B. Use and care information	83
Caring for your computer	83
Accessibility and comfort	89
Maintenance	91
Appendix C. Lenovo limited warranty	96
Warranty information	106
Appendix D. Customer replaceable units (CRUs)	110
Appendix E. Notices	112
Notices	112
ENERGY STAR model information	115
Wireless related information	117
Electronic emissions notices	121
WEEE and recycling statements	128
Turkish statement of compliance	128
Türkiye EEE Yönetmeli²ine Uygunluk BeyanÆ	128
EU WEEE statements	129
Japan recycling statements	130
Notice for users in the U.S.A.	132
Notice on deleting data from your hard disk	132
Appendix F. Features and Specifications	134
Trademarks	136

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Trademarks

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Lenovo, Lenovo logo, IdeaPad, VeriFace and OneKey are either registered

trademarks or trademarks of Lenovo in the United States and/or other

countries.

Microsoft and Windows are trademarks of Microsoft Corporation in the

United States, other countries, or both.

Other company, product or service names may be trademarks or service

marks of others.

All other trademarks and registered trademarks are trademarks or

registered trademarks of their respective holders. In this manual, ™ and ®

marks are not specified.